**Conflict of interest**

Peter Kempler has received honoraria from and/or is an advisory member of the following companies: Ely Lilly, Novo Nordisk, Novartis, Miro, Boehringer-Ingelheim, Woerwag-Pharma, Pfizer, Sanofi, Di-Care Zrt., 77 Elektronika Kft., Teva, Astra-Zeneca.
